Shouldn't there be a cap on child support?

If I make 1 million dollars a year. Why would my ex girlfriend need $6700 dollars per month to raise a child? That makes no sense!!! Is this constitutional? Shouldn't there be a federal cap on child support? No single child needs that much money to be taken care of.... This just creates a money making machine for women to sleep with rich men... This has to be a violation of our rights...That's $70,000 per year. There are families of 4 that could live like KINGS on that king of an income, let alone one child.